Daniel W. Mackey, MD
NPI 1407877947ActiveIndividual· Internal Medicine, Hematology & Oncology· Fort Smith, AR
Internal Medicine, Hematology & Oncology (MD) with Mercy Clinic Fort Smith Communities, practicing in Fort Smith, Arkansas. Their prescriptions cost Medicare Part D more than their services did: $5,708,742 for 2,722 claims, against $241,893 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 19 companies reporting payments in 2025, $1,222 in all, mostly food and beverage. Lists Mercy Hospital Fort Smith and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1407877947 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 21, 2006 |
| Last updated in NPPES | Aug 31, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | E-3603 | AR |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology/Oncology (AR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 777 |
|---|---|
| Services billed | 4,530 across 25 procedure codes |
| Paid by Medicare | $241,893 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,722 · 3,408 30-day fills |
|---|---|
| Patients | 374 |
| Total drug cost | $5,708,742 |
| Generic share | 80% of claims |
Education and affiliations
| Graduation year | 1998 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Mercy Clinic Fort Smith CommunitiesFort Smith, AR · 372 clinicians
Hospital affiliations
- Mercy Hospital Fort SmithFort Smith, AR
- Mercy Hospital OzarkOzark, AR
- Mercy Hospital ParisParis, AR
- Mercy Hospital WaldronWaldron, AR
Industry payments (Open Payments)
- 2025$1,222 · 64 payments from 19 companies
- 2024$1,359 · 89 payments from 19 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $268.11 | 15 |
| Abbvie Inc. | $203.86 | 13 |
| Daiichi Sankyo Inc. | $168.65 | 7 |
| Glaxosmithkline, LLC. | $109.46 | 7 |
| Tempus Ai, Inc | $107.31 | 2 |
What the 2025 payments were for
- Food and Beverage$1,130 · 62 payments
- Education$91.59 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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